_ stats: contacts=4 Nring=4 specif=1.00 _ PDBs: 1:1r8e_A,2:6ldi_G, _ -lnE: 1:10.8,2:10.2, _ 1 2 0022 R* KCKG 0025 R* RTRT 0026 Y* --FC 0042 K* YCYG